My Grandma's sister lived in a granny flat at the back of my Grandma's house. There was an above-ground pool behind the flat that I used to swim in.
When I was little, my Grandma's sister would watch from her front door and everytime I was about to jump in the ppol, she'd scream out, "LOOK OUT!! There's a shark in there with it's mouth open and you're gonna jump straight into it's mouth!!"
Because she used to do this, I used to think there were sharks living in the shadowy side of the pool (Eventhough I couldn't see them). I used to make my Pop come down and sit beside to pool all day just to make sure the sharks wouldn't eat me... haha
A childhood belief about swimming pools

others believed things like this
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- i used to believe there were invisible sharks in the deep end of the pool, thanks to my older brother.— Melissa
- I believed that the Kreepy Crawlie used to clean our pool, would follow me around the pool and eat me. — Mother-of-2
- When i was younger,I used to believe i could see a shark in a pool .Anon
- i used to believe that pools had underwater doors that sharks were going to swim out of.— marky
- I used to think that a carpool was one of those bug, long limosine's with a pool all the way in the back.— Annie